BIOLOGY:HOW LIFE WORKS (COMP.)-W/ACCESS
3rd Edition
ISBN: 9781319358075
Author: Morris
Publisher: Macmillan Higher Education
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Chapter 31.2, Problem 4SAQ
Summary Introduction
Each plant species alternates among two multicellular forms, which includes a haploid gametophyte generation (makes gametes) and a diploid sporophyte generation (makes spores). The gametophyte generation starts with a haploid spore, which is generated by meiosis. The gametophyte generates gametes by mitosis and sexual reproduction. This resulting in diploid sporophyte generation.
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Is the protonema part of the gametophyte or sporophyte generation?
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a) On the diagram, which labeled structure
represents the mature male gametophyte?
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c) On the diagram, which labeled structure
represents the immature male gametophyte?
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d) Which labeled structure represents the mature
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Which of the following lettered structures is the female gametophyte?
Chapter 31 Solutions
BIOLOGY:HOW LIFE WORKS (COMP.)-W/ACCESS
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- Can you answer all the parts to this question please (a) What are the advantages of the self-incompatibility (SI) system in plants? Give at least three advantages. (b) What are the differences between gametophytic SI and sporophytic SI?arrow_forwardPlease elaborate mechanisms of male and female gametophyte formation in crop plants.arrow_forwardWhat is a seed? What are four key adptations common in seed plants? What are the advantages of reduced gametophyte?arrow_forward
- In most female gametophytes with eight nuclei, only the egg and the central cell nuclei do not degenerate. What would happen if the megaspore itself functioned as an egg and did not go on to produce other nuclei in a female gametophyte?arrow_forwardWhat is the function of the sporophyte (that is, what does it do, or what reproductive structures does it produce)? What type of nuclear division must take place for the sporogenous tissue to become spores? Is the protonema part of the gametophyte or sporophyte generation?arrow_forwardIs gamete producing hiploid gametophyte and spore produce diploid sporophytes?arrow_forward
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